05 Aug 2015
05 Aug 2015
Observation of the Cosmic-Ray Shadow of the Moon and Sun with IceCube
F. Bosa,1, F. Tenholta,1, J. Becker Tjusa,1, and S. Westerhoff2,3,a
F. Bos et al.
F. Bosa,1, F. Tenholta,1, J. Becker Tjusa,1, and S. Westerhoff2,3,a
- 1Department of Physics, Ruhr-Universität Bochum, 44801 Bochum, Germany
- 2Department of Physics, University of Wisconsin, Madison, WI 53706, USA
- 3Wisconsin IceCube Particle Astrophysics Center, Madison, WI 53703, USA
- aFor the IceCube Collaboration, http://icecube.wisc.edu
- 1Department of Physics, Ruhr-Universität Bochum, 44801 Bochum, Germany
- 2Department of Physics, University of Wisconsin, Madison, WI 53706, USA
- 3Wisconsin IceCube Particle Astrophysics Center, Madison, WI 53703, USA
- aFor the IceCube Collaboration, http://icecube.wisc.edu
Correspondence: F. Bos (fabian.bos@icecube.wisc.edu)
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Received: 27 Apr 2015 – Revised: 18 Jun 2015 – Accepted: 25 Jun 2015 – Published: 05 Aug 2015
Moon shadow analyses are standard methods to calibrate cosmic-ray detectors. We report on a three-year observation of cosmic-ray Moon and Sun shadows in different detector configurations. The cosmic-ray Moon shadow was observed with high statistical significance (> 6σ) in previous analyses when the IceCube detector operated in a smaller configuration before it was completed in December 2010. This work shows first analyses of the cosmic-ray Sun shadow in IceCube. A binned analysis in one-dimension is used to measure the Moon and Sun shadow with high statistical significance greater than 12σ.
